The application of sealing modules in offshore wind power equipment is crucial, primarily to ensure the long-term reliable operation of the equipment in extreme marine environments (such as high salt spray, high humidity, strong winds and waves, and large temperature fluctuations). The following outlines the main application scenarios, functional requirements, and technical characteristics of TST SEAL sealing modules in offshore wind power equipment:

1. 1. Main Application Areas of TST SEAL Sealing Modules in Offshore Wind Power Equipment

Nacelle Sealing

Protects core components such as generators, gearboxes, and converters from moisture and salt spray corrosion.

Sealing modules are used in nacelle cover joints, cable entries, and cooling system inlets and outlets.

Tower and Foundation Connection

Prevents seawater or moisture from entering the internal electrical/control equipment area through the bottom of the tower.

Often uses rubber sealing rings, waterproof adhesives, or composite sealing structures.

Pitch and Yaw Systems

Pitch bearings and yaw bearings require dynamic sealing to prevent lubricant leakage and the intrusion of external contaminants.

Uses rotary seals (such as lip seals, mechanical seals).

Subsea Cable Terminals and Connectors

The connection between the subsea cable and the wind turbine platform requires high-pressure waterproof sealing, often using heat-shrink tubing, potting compound, or metal sealing connectors.

Requires pressure resistance, corrosion resistance, and resistance to biofouling.

Transformers and Switchgear

Offshore substations or electrical cabinets in the nacelle require IP65 or higher protection ratings.

Sealing modules include door seals, cable glands, and ventilation valves.

1. 1. Key Performance Requirements of TST SEAL Sealing Modules

Corrosion Resistance: Resistance to chloride ions and salt spray corrosion (materials such as fluororubber FKM, silicone rubber VMQ, EPDM, etc.).

Weather Resistance: Adaptable to temperature differences from -40℃ to +80℃ or even higher, and resistant to UV aging.

Waterproof and Dustproof Rating: Typically requires IP66 or higher (IEC 60529 standard).

Long-term Reliability: Design life ≥ 25 years, long maintenance cycle.

Dynamic/Static Adaptability: Some seals need to withstand vibration, displacement, or rotational motion.

III. Typical Sealing Technologies and Materials in Offshore Wind Power Equipment

1. 1. Development Trends of Sealing Modules in Offshore Wind Turbine Equipment

TST Seal Intelligent Sealing Monitoring: Integrated sensors monitor sealing status in real time (e.g., temperature, leakage, aging, electromagnetic radiation).

Modular Design: Facilitates installation and replacement, reducing operation and maintenance costs.

Environmentally Friendly Materials: Developing recyclable, low-VOC emission sealing materials.

Anti-Biofouling Technology: Introducing antifouling coatings or materials into the subsea portion.

In the next article, I will explain the common failure causes of offshore wind turbine sealing modules. Interested readers are welcome to continue following TST Sesl. You can also contact me via email at any time.